Last month, federal government climate scientist Kevin Trenberth told USA Today, “The prospect is worrying, with the increases in severe thunderstorms and the risk of large-scale environments that favor tornadoes having the potential for major impacts in the U.S.”

Earlier this year, U.S. Sen. Barbara Boxer (D-CA) said, “This is climate change. We were warned about extreme weather. Not just hot weather. But extreme weather. When I had my hearings, when I had the gavel years ago – it’s been a while – the scientists all agreed that what we’d start to see was extreme weather. … You’re gonna have terrible storms. You’re going to have tornados and all the rest.”